The “homelss” ego (Haumai) has made our mind home because our Manmukh-mind (crooked, worldly, Mayaic, corrupt, devoid of sincere Shabad-Vichaar, and so on) does not want to give up the egoistic love of itself and its crooked or false ways. It does not want to put forward the sincere self-efforts (“Uddam”) to inquire (Shabad-Vichaar) into its Real Source (Mool, etc.) as Joti-Svaroopa. In other words, the Manmukh mind does not sincerely want to understand the Aatmic-Giaan contained in the Gurbani. The moment it understand the Aatmic-Giaan, it becomes the Gurmukh (Aatm Giaanee, True Being, etc.) and it’s false ego-sense folds it’s tent and leave, never to come back again. However, as the Gurbani indicates, the Gurmukhs are very “rare”. For a Manmukh finds the Gurmukh Lifestyle (Divine Life) unappealing. So instead of taking a plunge into the River of Aatmic-Giaan, it just stands at the shore, full of doubts (Bharam-Giaan), excuses, foolish concepts, idle talks, etc.

Sri T Singh ji,
I agree with you about the ego.
You said “Accordingly, the Gurbani time and again urges all of us to eradicate egotism (Haumai) and become the Gurmukh.”

The ego cannot and will not eradicate itself because it is a projection of the Supreme Self or God. When does God or the Supreme Joti Swaroop within us decide to eradicate or destroy the ego and take over the body completely?